Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 5/7 and 72/90

5/7 + 72/90 is 53/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 7 × 90 = 630,
    5/7 = 5 × 90/7 × 90 = 450/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    72/90 = 72 × 7/90 × 7 = 504/630
  4. Add the two like fractions:
    450/630 + 504/630 = 450 + 504/630 = 954/630
  5. 954/630 simplified gives 53/35
  6. So, 5/7 + 72/90 = 53/35
    In mixed form: 118/35

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com